New art will release with the coming of this book.
Most of the big questions we have will be resolved.
Shannon Messenger's contract only lasts until book 9, but she can always renew it, so there is a likely chance this will not be the last book in the series.
Shannon Messenger hinted in an interview that she didn't think she'd be able to wrap up the series in only one more book, so there would probably be a Book 10, although no official contract had been drawn up.[3]